Abstract: Particulate radioactive wastes are packaged for storage until radioactivity decays by fastening a tight mesh fabric bag in a barrel or other suitable storage container, filling the bag with a mixture of radioactive waste material and a non-radioactive liquid material, and then solidifying the non-radioactive liquid to encapsulate the radioactive waste. The tight mesh weave of the fabric bag acts as a barrier to the particulate radioactive material but not to the liquid. A portion of the liquid thus flows through the bag to form a protective layer between the bag and outer container wall. The remainder stays in the bag and mixes with the radioactive particulate. Solidification of the non-radioactive liquid produces a monolithic solid having a protective layer of a solidified non-radioactive material covering the entire surface area of an immobilized mass of radioactively contaminated particulate material.

Abstract: A waste disposal system for radioactively contaminated salt solutions that includes a reaction chamber for interacting the contaminated salt solutions with a fluidized particulate bed to agglomerate salt molecules into bed-sized particles is illustrated herein. Excess bed material is removed during operation by an air flow pipeline system that includes two intersecting pipeline branches. One branch defines a gravity flow exit pathway for particulate bed material reaching a preselected level in the chamber, and the other provides an exit pathway for air and fine particles near the top of the chamber. Air flow through the exit pipeline branches causes fluidic mixing of fine particles with the larger bed-sized particles at the intersection of the two branches. The mixed particles are agglomerated by a centrifugal separator that also removes the particles from the air flow and deposits them into a storage container.

Abstract: A fluid eductor for injecting a secondary fluid e.g. air, oxygen, ozone or other reactant fluids into a primary fluid, e.g. oxygen, waste water, depleted water, sewage fluids or other reactant fluids flowing in a conduit. A spool housing having a generally cylindrical header assembly interior thereof is mounted in the conduit in the flow path of the primary fluid. In a first embodiment, the header assembly comprises a hollow tank, an inlet pipe coupled to an external supply of secondary fluid, a plurality of flow through pipes extending through the header tank along the secondary fluid flow path and terminating downstream of the tank, and a corresponding plurality of conical platelet assemblies each arranged concentrically of the associated flow through pipe. Each conical platelet assembly provides a plurality of flow passages in communication with the interior of the tank and the associated flow through pipe to permit secondary fluid to be injected into the primary fluid flowing through the pipe.